Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[pandora-kernel.git] / drivers / net / wireless / iwlwifi / iwl-led.c
index aa6ad18..899d7a2 100644 (file)
 #include "iwl-io.h"
 #include "iwl-helpers.h"
 
-#define IWL_1MB_RATE (128 * 1024)
-#define IWL_LED_THRESHOLD (16)
-#define IWL_MAX_BLINK_TBL (10)
+#ifdef CONFIG_IWLWIFI_DEBUG
+static const char *led_type_str[] = {
+       __stringify(IWL_LED_TRG_TX),
+       __stringify(IWL_LED_TRG_RX),
+       __stringify(IWL_LED_TRG_ASSOC),
+       __stringify(IWL_LED_TRG_RADIO),
+       NULL
+};
+#endif /* CONFIG_IWLWIFI_DEBUG */
+
 
 static const struct {
        u16 tpt;
        u8 on_time;
-       u8 of_time;
+       u8 off_time;
 } blink_tbl[] =
 {
        {300, 25, 25},
@@ -63,26 +70,31 @@ static const struct {
        {15, 95, 95 },
        {10, 110, 110},
        {5, 130, 130},
-       {0, 167, 167}
+       {0, 167, 167},
+/* SOLID_ON */
+       {-1, IWL_LED_SOLID, 0}
 };
 
-static int iwl_led_cmd_callback(struct iwl_priv *priv,
-                               struct iwl_cmd *cmd, struct sk_buff *skb)
+#define IWL_1MB_RATE (128 * 1024)
+#define IWL_LED_THRESHOLD (16)
+#define IWL_MAX_BLINK_TBL (ARRAY_SIZE(blink_tbl) - 1) /* exclude SOLID_ON */
+#define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)
+
+/*  [0-256] -> [0..8] FIXME: we need [0..10] */
+static inline int iwl_brightness_to_idx(enum led_brightness brightness)
 {
-       return 1;
+       return fls(0x000000FF & (u32)brightness);
 }
 
-
 /* Send led command */
-static int iwl_send_led_cmd(struct iwl_priv *priv,
-                           struct iwl4965_led_cmd *led_cmd)
+static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
 {
        struct iwl_host_cmd cmd = {
                .id = REPLY_LEDS_CMD,
-               .len = sizeof(struct iwl4965_led_cmd),
+               .len = sizeof(struct iwl_led_cmd),
                .data = led_cmd,
                .meta.flags = CMD_ASYNC,
-               .meta.u.callback = iwl_led_cmd_callback
+               .meta.u.callback = NULL,
        };
        u32 reg;
 
@@ -93,33 +105,20 @@ static int iwl_send_led_cmd(struct iwl_priv *priv,
        return iwl_send_cmd(priv, &cmd);
 }
 
-
-/* Set led on command */
-static int iwl4965_led_on(struct iwl_priv *priv, int led_id)
-{
-       struct iwl4965_led_cmd led_cmd = {
-               .id = led_id,
-               .on = IWL_LED_SOLID,
-               .off = 0,
-               .interval = IWL_DEF_LED_INTRVL
-       };
-       return iwl_send_led_cmd(priv, &led_cmd);
-}
-
-/* Set led on command */
+/* Set led pattern command */
 static int iwl4965_led_pattern(struct iwl_priv *priv, int led_id,
-                              enum led_brightness brightness)
+                              unsigned int idx)
 {
-       struct iwl4965_led_cmd led_cmd = {
+       struct iwl_led_cmd led_cmd = {
                .id = led_id,
-               .on = brightness,
-               .off = brightness,
                .interval = IWL_DEF_LED_INTRVL
        };
-       if (brightness == LED_FULL) {
-               led_cmd.on = IWL_LED_SOLID;
-               led_cmd.off = 0;
-       }
+
+       BUG_ON(idx > IWL_MAX_BLINK_TBL);
+
+       led_cmd.on = blink_tbl[idx].on_time;
+       led_cmd.off = blink_tbl[idx].off_time;
+
        return iwl_send_led_cmd(priv, &led_cmd);
 }
 
@@ -132,10 +131,22 @@ static int iwl4965_led_on_reg(struct iwl_priv *priv, int led_id)
 }
 
 #if 0
+/* Set led on command */
+static int iwl4965_led_on(struct iwl_priv *priv, int led_id)
+{
+       struct iwl_led_cmd led_cmd = {
+               .id = led_id,
+               .on = IWL_LED_SOLID,
+               .off = 0,
+               .interval = IWL_DEF_LED_INTRVL
+       };
+       return iwl_send_led_cmd(priv, &led_cmd);
+}
+
 /* Set led off command */
 int iwl4965_led_off(struct iwl_priv *priv, int led_id)
 {
-       struct iwl4965_led_cmd led_cmd = {
+       struct iwl_led_cmd led_cmd = {
                .id = led_id,
                .on = 0,
                .off = 0,
@@ -155,25 +166,10 @@ static int iwl4965_led_off_reg(struct iwl_priv *priv, int led_id)
        return 0;
 }
 
-/* Set led blink command */
-static int iwl4965_led_not_solid(struct iwl_priv *priv, int led_id,
-                              u8 brightness)
-{
-       struct iwl4965_led_cmd led_cmd = {
-               .id = led_id,
-               .on = brightness,
-               .off = brightness,
-               .interval = IWL_DEF_LED_INTRVL
-       };
-
-       return iwl_send_led_cmd(priv, &led_cmd);
-}
-
-
 /*
  * brightness call back function for Tx/Rx LED
  */
-static int iwl4965_led_associated(struct iwl_priv *priv, int led_id)
+static int iwl_led_associated(struct iwl_priv *priv, int led_id)
 {
        if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
            !test_bit(STATUS_READY, &priv->status))
@@ -189,16 +185,18 @@ static int iwl4965_led_associated(struct iwl_priv *priv, int led_id)
 /*
  * brightness call back for association and radio
  */
-static void iwl4965_led_brightness_set(struct led_classdev *led_cdev,
+static void iwl_led_brightness_set(struct led_classdev *led_cdev,
                                       enum led_brightness brightness)
 {
-       struct iwl4965_led *led = container_of(led_cdev,
-                                              struct iwl4965_led, led_dev);
+       struct iwl_led *led = container_of(led_cdev, struct iwl_led, led_dev);
        struct iwl_priv *priv = led->priv;
 
        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
 
+
+       IWL_DEBUG_LED("Led type = %s brightness = %d\n",
+                       led_type_str[led->type], brightness);
        switch (brightness) {
        case LED_FULL:
                if (led->type == IWL_LED_TRG_ASSOC)
@@ -215,8 +213,10 @@ static void iwl4965_led_brightness_set(struct led_classdev *led_cdev,
                        led->led_off(priv, IWL_LED_LINK);
                break;
        default:
-               if (led->led_pattern)
-                       led->led_pattern(priv, IWL_LED_LINK, brightness);
+               if (led->led_pattern) {
+                       int idx = iwl_brightness_to_idx(brightness);
+                       led->led_pattern(priv, IWL_LED_LINK, idx);
+               }
                break;
        }
 }
@@ -226,8 +226,7 @@ static void iwl4965_led_brightness_set(struct led_classdev *led_cdev,
 /*
  * Register led class with the system
  */
-static int iwl_leds_register_led(struct iwl_priv *priv,
-                                  struct iwl4965_led *led,
+static int iwl_leds_register_led(struct iwl_priv *priv, struct iwl_led *led,
                                   enum led_type type, u8 set_led,
                                   const char *name, char *trigger)
 {
@@ -235,7 +234,7 @@ static int iwl_leds_register_led(struct iwl_priv *priv,
        int ret;
 
        led->led_dev.name = name;
-       led->led_dev.brightness_set = iwl4965_led_brightness_set;
+       led->led_dev.brightness_set = iwl_led_brightness_set;
        led->led_dev.default_trigger = trigger;
 
        led->priv = priv;
@@ -259,32 +258,28 @@ static int iwl_leds_register_led(struct iwl_priv *priv,
 /*
  * calculate blink rate according to last 2 sec Tx/Rx activities
  */
-static inline u8 get_blink_rate(struct iwl_priv *priv)
+static int iwl_get_blink_rate(struct iwl_priv *priv)
 {
        int i;
-       u8 blink_rate;
-       u64 current_tpt = priv->tx_stats[2].bytes + priv->rx_stats[2].bytes;
+       u64 current_tpt = priv->tx_stats[2].bytes;
+       /* FIXME: + priv->rx_stats[2].bytes; */
        s64 tpt = current_tpt - priv->led_tpt;
 
        if (tpt < 0) /* wrapparound */
                tpt = -tpt;
 
+       IWL_DEBUG_LED("tpt %lld current_tpt %lld\n", tpt, current_tpt);
        priv->led_tpt = current_tpt;
 
-       if (tpt < IWL_LED_THRESHOLD) {
+       if (!priv->allow_blinking)
                i = IWL_MAX_BLINK_TBL;
-       } else {
+       else
                for (i = 0; i < IWL_MAX_BLINK_TBL; i++)
                        if (tpt  > (blink_tbl[i].tpt * IWL_1MB_RATE))
                                break;
-       }
-       /* if 0 frame is transfered */
-       if ((i == IWL_MAX_BLINK_TBL) || !priv->allow_blinking)
-               blink_rate = IWL_LED_SOLID;
-       else
-               blink_rate = blink_tbl[i].on_time;
 
-       return blink_rate;
+       IWL_DEBUG_LED("LED BLINK IDX=%d", i);
+       return i;
 }
 
 static inline int is_rf_kill(struct iwl_priv *priv)
@@ -300,7 +295,7 @@ static inline int is_rf_kill(struct iwl_priv *priv)
  */
 void iwl_leds_background(struct iwl_priv *priv)
 {
-       u8 blink_rate;
+       u8 blink_idx;
 
        if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
                priv->last_blink_time = 0;
@@ -313,9 +308,10 @@ void iwl_leds_background(struct iwl_priv *priv)
 
        if (!priv->allow_blinking) {
                priv->last_blink_time = 0;
-               if (priv->last_blink_rate != IWL_LED_SOLID) {
-                       priv->last_blink_rate = IWL_LED_SOLID;
-                       iwl4965_led_on(priv, IWL_LED_LINK);
+               if (priv->last_blink_rate != IWL_SOLID_BLINK_IDX) {
+                       priv->last_blink_rate = IWL_SOLID_BLINK_IDX;
+                       iwl4965_led_pattern(priv, IWL_LED_LINK,
+                                           IWL_SOLID_BLINK_IDX);
                }
                return;
        }
@@ -324,21 +320,14 @@ void iwl_leds_background(struct iwl_priv *priv)
                        msecs_to_jiffies(1000)))
                return;
 
-       blink_rate = get_blink_rate(priv);
+       blink_idx = iwl_get_blink_rate(priv);
 
        /* call only if blink rate change */
-       if (blink_rate != priv->last_blink_rate) {
-               if (blink_rate != IWL_LED_SOLID) {
-                       priv->last_blink_time = jiffies +
-                                               msecs_to_jiffies(1000);
-                       iwl4965_led_not_solid(priv, IWL_LED_LINK, blink_rate);
-               } else {
-                       priv->last_blink_time = 0;
-                       iwl4965_led_on(priv, IWL_LED_LINK);
-               }
-       }
+       if (blink_idx != priv->last_blink_rate)
+               iwl4965_led_pattern(priv, IWL_LED_LINK, blink_idx);
 
-       priv->last_blink_rate = blink_rate;
+       priv->last_blink_time = jiffies;
+       priv->last_blink_rate = blink_idx;
 }
 EXPORT_SYMBOL(iwl_leds_background);
 
@@ -362,10 +351,8 @@ int iwl_leds_register(struct iwl_priv *priv)
        priv->led[IWL_LED_TRG_RADIO].led_off = iwl4965_led_off_reg;
        priv->led[IWL_LED_TRG_RADIO].led_pattern = NULL;
 
-       ret = iwl_leds_register_led(priv,
-                                  &priv->led[IWL_LED_TRG_RADIO],
-                                  IWL_LED_TRG_RADIO, 1,
-                                  name, trigger);
+       ret = iwl_leds_register_led(priv, &priv->led[IWL_LED_TRG_RADIO],
+                                  IWL_LED_TRG_RADIO, 1, name, trigger);
        if (ret)
                goto exit_fail;
 
@@ -373,10 +360,9 @@ int iwl_leds_register(struct iwl_priv *priv)
        snprintf(name, sizeof(name), "iwl-%s:assoc",
                 wiphy_name(priv->hw->wiphy));
 
-       ret = iwl_leds_register_led(priv,
-                                  &priv->led[IWL_LED_TRG_ASSOC],
-                                  IWL_LED_TRG_ASSOC, 0,
-                                  name, trigger);
+       ret = iwl_leds_register_led(priv, &priv->led[IWL_LED_TRG_ASSOC],
+                                  IWL_LED_TRG_ASSOC, 0, name, trigger);
+
        /* for assoc always turn led on */
        priv->led[IWL_LED_TRG_ASSOC].led_on = iwl4965_led_on_reg;
        priv->led[IWL_LED_TRG_ASSOC].led_off = iwl4965_led_on_reg;
@@ -386,31 +372,26 @@ int iwl_leds_register(struct iwl_priv *priv)
                goto exit_fail;
 
        trigger = ieee80211_get_rx_led_name(priv->hw);
-       snprintf(name, sizeof(name), "iwl-%s:RX",
-                wiphy_name(priv->hw->wiphy));
+       snprintf(name, sizeof(name), "iwl-%s:RX", wiphy_name(priv->hw->wiphy));
 
 
-       ret = iwl_leds_register_led(priv,
-                                  &priv->led[IWL_LED_TRG_RX],
-                                  IWL_LED_TRG_RX, 0,
-                                  name, trigger);
+       ret = iwl_leds_register_led(priv, &priv->led[IWL_LED_TRG_RX],
+                                  IWL_LED_TRG_RX, 0, name, trigger);
 
-       priv->led[IWL_LED_TRG_RX].led_on = iwl4965_led_associated;
-       priv->led[IWL_LED_TRG_RX].led_off = iwl4965_led_associated;
+       priv->led[IWL_LED_TRG_RX].led_on = iwl_led_associated;
+       priv->led[IWL_LED_TRG_RX].led_off = iwl_led_associated;
        priv->led[IWL_LED_TRG_RX].led_pattern = iwl4965_led_pattern;
 
        if (ret)
                goto exit_fail;
 
        trigger = ieee80211_get_tx_led_name(priv->hw);
-       snprintf(name, sizeof(name), "iwl-%s:TX",
-                wiphy_name(priv->hw->wiphy));
-       ret = iwl_leds_register_led(priv,
-                                  &priv->led[IWL_LED_TRG_TX],
-                                  IWL_LED_TRG_TX, 0,
-                                  name, trigger);
-       priv->led[IWL_LED_TRG_TX].led_on = iwl4965_led_associated;
-       priv->led[IWL_LED_TRG_TX].led_off = iwl4965_led_associated;
+       snprintf(name, sizeof(name), "iwl-%s:TX", wiphy_name(priv->hw->wiphy));
+       ret = iwl_leds_register_led(priv, &priv->led[IWL_LED_TRG_TX],
+                                  IWL_LED_TRG_TX, 0, name, trigger);
+
+       priv->led[IWL_LED_TRG_TX].led_on = iwl_led_associated;
+       priv->led[IWL_LED_TRG_TX].led_off = iwl_led_associated;
        priv->led[IWL_LED_TRG_TX].led_pattern = iwl4965_led_pattern;
 
        if (ret)
@@ -425,7 +406,7 @@ exit_fail:
 EXPORT_SYMBOL(iwl_leds_register);
 
 /* unregister led class */
-static void iwl_leds_unregister_led(struct iwl4965_led *led, u8 set_led)
+static void iwl_leds_unregister_led(struct iwl_led *led, u8 set_led)
 {
        if (!led->registered)
                return;